Invention Grant
US09249028B2 Method for making high purity metal oxide particles and materials made thereof 有权
制备高纯度金属氧化物颗粒的方法及其制备的材料

Method for making high purity metal oxide particles and materials made thereof
Abstract:
The present invention is directed to a method of making metal oxide and mixed metal oxide particles. The method includes treating a mixture formed from a metal source, such as metal alkoxide, a surfactant, and a first alcohol in an aqueous media at a very high metal oxide yield. The mixture is reacted using a catalyst to form metal oxide particles having a desired particle size in said mixture. By washing the particles with an aprotic solvent, the residual carbon content of the particles can be significantly reduced. The method is particularly suitable for forming silica particles. The metal oxide particles can then be heat treated to form synthetic fused metal oxides such as, for example, synthetic fused silica.
Information query
Patent Agency Ranking
0/0